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Streamflow Measurements for the Nation

! Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

USGS 16854500 Ugum River above Talofofo Falls, nr Talofofo, Guam

Guam, Guam
Hydrologic Unit Code 22010000
Latitude  13°19'20.7", Longitude -144°44'10.1" NAD83
Drainage area 5.92  square miles
Gage datum 130 feet above LMSL

Period of record
Begin Date End Date Count
1988-10-17 2025-07-20 159

 
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